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Recommended Hardware

Emad Ghazipura edited this page Dec 30, 2023 · 11 revisions
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SmartSpin2K Sourcing Guide

Hardware can be sourced for two versions of the SmartSPin2K - Legacy and PCB. For new builds, we strongly recommend the PCB hardware.

This sourcing guide assumes you have a spin bike that reports wattage over bluetooth or a spin bike with a bluetooth power meter.

You should be able to source all components for < $100 USD including shipping

Common Hardware - All Versions

The components in this list are required for the assembly of all versions of the SmartSpin2K

qty Part Amazon Aliexpress
1 38mm NEMA 17 Stepper https://a.co/d/iN8ikZy https://www.aliexpress.com/item/4000474225551.html
1 12 or 24V Power Supply* https://a.co/d/ifaZIT9 https://www.aliexpress.com/item/32975192317.html
2 Tactile Switches https://amzn.to/33ezmKx https://www.aliexpress.com/item/32958087576.html
2 608 Skate Bearings https://amzn.to/3isBzrW https://www.aliexpress.com/item/32700232097.html
1 Stereo RCA-->3.5mm headphone "Y" Cable https://www.aliexpress.com/item/4000204275028.html
1 5/16" x 1-1/2" hex head bolt
1 5/16" washers
2 5/16" nuts

*Power supply can be in the 12v-24v range. Aim for 1amp or greater. If using the SmartSpin2K PCB Kit, you will need a 5.5x2.1 connector.

Optional equipment so you can actually use it for fitness:

qty Part Link
1 Assioma Pedals(or similar) https://amzn.to/3ioSjk7
1 Cheap Spin Bike Check Ebay https://amzn.to/33mPmKj

Version 3 Hardware

qty Part Sourcing Notes
1 PCB + Wiring Harness Kit Prebuilt Kit JST Connectors are pre-soldered
1 PCB (self-sourced) PCB Files https://www.aliexpress.com/item/1005001267643044.html
JST-XH connectors kit https://a.co/d/14NJyfu May be required if self-sourcing PCB
wire and connectors for wiring harness required if self-sourcing PCB

Common Hardware - Version 1 and Version 2

The components in this list are required for the assembly of all versions of the SmartSpin2K

qty Part Amazon Aliexpress
1 ESP32 Dev Board https://amzn.to/2ZNyjQX https://www.aliexpress.com/item/1005001267643044.html
1 TMC2225 https://amzn.to/3kctdEQ https://www.aliexpress.com/item/4000296898203.html
JST-XH connectors kit https://a.co/d/14NJyfu
1 3.5mm stereo headphone connector (shifter connector) https://www.aliexpress.com/item/4000640677390.html
1 5.5X2.1mm Dc Power connector https://www.aliexpress.com/item/4000694128319.html

Version 2 (PCB Version, Direct Mount, and Ultra Short Mod)

Please note that not all items provided in links may be in stock at the time of your order. You may need to search for the closest equivalents if out of stock. Screws for case assembly will differ based on the version being built.

Please check the readme.md for the Direct Mount mod for additional required components

Follow the BOM provided below for the latest parts list.

qty Part Link Notes
1 PCB https://www.pcbway.com/project/shareproject/SmartSpin2k_PCB.html
1 Recom R-78E5.0-0.5 https://octopart.com/r-78e5.0-0.5-recom+power-21698196
1 10uF 50V capacitor https://octopart.com/50ml10mefc5x7-rubycon-19941930 Source 6mm diameter or smaller
1 100uF 25V capacitor https://octopart.com/25yxj100m5x11-rubycon-24361474 Source 6mm diameter or smaller
1 0.1uF 50V capacitor https://octopart.com/c315c104m5u5ta7301-kemet-20253274
1 1K Ohm resistor https://octopart.com/rnf14ftd1k00-stackpole+electronics-19224710
4 #8 x 1.75" countersunk wood screws Not used in direct mount mod

Hand Wired Version

This version may be relevant to you if you are a developer or if you'd prefer not to source a PCB.

qty Part Amazon Aliexpress
1 LM2596 Buck Converter https://amzn.to/33ofggY https://www.aliexpress.com/item/33014890815.html
4 #6 X 3/4" wood screws https://a.co/d/iY7kOIK